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- Subject
- Horticultureagriculture-mcqs › horticulture
- Published
- 1 Apr 2019
- Last updated
- 28 May 2026
Explanation
The R1 to R6 resistance genes against late blight in potatoes were initially reported by Biffen in 1905. Other researchers such as Flor (1956), Van der Plank (1963), and Painter (1951) contributed to related studies but did not first identify these specific genes.
More Horticulture MCQs
Practice related questions from the same subject.
- 1.What is the branch of science that deals with the cultivation and study of fruit called?
- 2.The term 'Silviculture' originates from which language?
- 3.What term describes the process when seeds separate from the fruit or flower?
- 4.What is the process called when seeds separate from the fruit or flower?
- 5.What is the name of the stalk that links an ovule or seed to the placenta within the ovary?
- 6.Suri is a type of which fruit?
- 7.What is the term for the practice of selectively removing parts of a plant to enhance its form, promote growth, encourage flowering and fruit production, and improve the quality of the yield?
- 8.Which of the following vegetable crops are not high in iodine content?